Cultivator.



- UNITED ,STATESPATENT ernten.

v WALKER A. DRoneoLD, or vom, PENNSYLVANIA.

cUL'rIv-A'ron, j

To all lwhom it may concern:

Be it known that I, WALKER A. DROM- GOLD, of the city of York, in theState of Pennsylvania, have invented certain new and useful Improvementsin Cultivators, of which the following is a specification.

This invention has to do with means for adjusting the shovels todifferent angles as required.

connection with the accompanying drawings, and will then point them out.more particularly in the claim.

In the drawings- Figure 1 is a side elevation of the rear portion of acultiva-tor showing one of the shovel standards provided with adjustablefastening means embodying my invention. Fig. 2 is a plan of one ofthe/devices for adjustably fastening the shovel to the beamthe shovel(of the horse hoe kind) being in dotted lines, and the shovel standard Kin section. Fig. 8 is a. vertical central section of the same with theshovel standard K in dotted lines, and the fastening bolt p inelevation. Fig. 4 is a rear elevation of that ortion of the shovelfastening device which term the shovel block. Fig. 5 is a frontelevation of that part of said device which I term the saddle.' F ig. 6is a perspective view of the saddle,

The means for adjusting the shovels which I have devised may be used inconnection with shovels or cultivator teeth of any usual or suitableconstruction; but they have been designed more particularly for use withwhat are known as horse hoe shovels, and it is in this connection that Ishall describe them. By horse hoe I intend that forni of shovel such asshown at L used to draw furrows and to throw the earth therefrom inwardsor outwards as desired, according to the angle at which they are set.

The'ordinary reversible cultivator tooth or shovel is shown at L. Therear shovels L on the ex anding outer beams C are horse hoe sho-ve s andit is to these that my improved adjusting means are applied. It is myobject to simplify the adjusting means and at the same time to renderthe same more eflicient in res )ect of ease of adjustment and solidityof hold on the shovel after the adjustment has been effected. 'ith thisin view I provide a ratchet faced saddle N having on its back forks awhich straddle and lit closely upon the standard K to which the saddleis applied and formed with a hole v Specification of Letters Patent.Application filed. January 23, 1908.. Serial No. 412,334.v j v I shallfirst describe my improvements in- Patentd aug. i, 190s.

n2 which will register with the hole 7c in the standard throughwhich theusual shovel attaching bolt passes.

The face 'n of the saddle is concave and widest at the top, thencetapering towards its lower end, having the form of the section of acone, or, more accurately speaking, a frusto-conical section; and it isformed with longitudinal ratchet ribs which are corresy ondingly widerapart from one another at t ie top and thence gradually converging asthey approach the lower end of the saddle. Upon the shovel L is thedevice which I have hereinbefore termed the shovel block, consisting ofa hollow casting O having a front face adaptedto fit against, and beattached to, the shovel L, and a rear face o v which is concave andtapering or of frustoconical section, to match and iit the concave "n inthe saddle; and it is also provided with longitudinal convergingAratchet ribs to match and engage the ratchet ribs of the concave n.

Through the convex ratchet face o of the hollow shovel-block is formed ahorizontal slot 0, through which passes boltv p, the screw threaded endof which extends through hole n2 in the saddle and hole lc in standardK, and is provided with nut p to draw the bolt so as to both clam theblock and saddle together and to hold llioth of them tightl andimmovably in placejon the standard. By loosening the bolt the ratchetfaces of the shovel block and saddle can be disengaged far enough t'oallow the block to be turned or rotated horizontally in the con# cavefn, to set the shovel at any desired angle of obliquity-the slot opermitting this movement.v The tapering concave and convex meeting facesof the block and saddle, as hereinbefore pointed out, are matchingtruste-conical sections; and the rotary or turning movement of the blockfor purposes of adjustment is in fact axial, that 1s to say, about theaxis of the cone.

W'hen the parts are drawn together by the bolt p, theengagement of t-heratchet ribs on the' meeting concave and convex faces of the saddle andblockwill prevent any rotary or turning movement of the block in ahorizontal pla-ne and will also resist any tendency to longitudinal slipof the block either upward or downward. The resistance to downward slipof the block is enhanced by the taper formation of the conlcave andconvex meeting faces of the saddle of the block is enhanced by a lug orshoulder n3 on the saddle which overhangs the upperf edge of the block.

`The broad extended bearing afforded by the ratcheted meeting faces ofthe saddle and block hold the shovel most securely and iirinly in `placeagainst any ofthe shocks "and strains to which it may be subjected.

same can be varied'wit-liout departure from the spirit of my invention.But

What I claim herein as new and desire to secure by Lett-eis Patent is asfollows:

1'. In combination with the shovel standard, the saddle and theA hollowcast-ing O having longitudinally-tafpcring concave and convex meetingfaces spondingly converging longitudinal ratchet ribs and adJustableaxially one relatively to the other, and means for securing said parts'together and to the standard, substantially as and for the purposeshereinbclore set forth. i

2. In combination with the shovel standard,'t.he saddle and the shovelblock having concave and convex meeting faces foi-ined withcorrespondingly converging longitudinal ratchet ribs, taperinglengthwise towards their lower ends and adjustable axially relatively toone another, a stop or overhang on orined 'with corre,

the bloc to revent upward slip of tliesaddle,

and means or securing the saddle and block together and to the standard,substantially as and for the purposes hereinbefore set forth. Intestimony whereof I aflix my signature in presence of two witnesses.

IVALKER A. DROMGOLD.'

Witnesses:`

T. E. DRoiiGoLn,

